IEEE 460:1988 pdf download.IEEE Standard for Electrical M easuring Transducer for Converting AC Electrical Quantities into DC Electrical Quantities.
IEEE 460 applies to measuring transducers used for converting ac electrical quantities such as current, voltage, power (active or reactive), power factor, phase angle or frequency to a direct current or voltage. Within the effective range, a change of output is a function of the corresponding change of input that pro duces it. An auxiliary supply may be needed to power active circuitry.
1.1.1 It applies only to applications where the frequency of the ac input(s) lies between 15 Hz and 1 kllz.
1.1.2 If a measuring transducer is part of a system for the measurement of nonelectrical quantity, this standard may be applied to the ac electrical measuring transducer if the transducer otherwise falls within the scope of this standard.
1.1.3 This standard does not attempt to fix case size of construction, mounting dimensions, terminal arrangements, or specify a guaranteed lifetime.
1.2 References. When the following standards referred to in this document have been superseded by an approved revision, the revision shall apply. This standard shall be used in conjunction with the following publications:
[1] ANSI c39.1-1981. Requirements for Electrical Analog Indicating Instruments.
[2] ANSI C39.5-1974. Safety Requirements for Electrical and Electronic Measuring and Controlling Instrumentation.
[3] ANSI/IEEE C37.90.1-1974, IEEE Guide for Surge Withstand Capability (SWC) Test.
[4] ANSI/IEEE Std 100-1984. IEEE Standard Dictionary of Electrical and Electronics Terms.
[5] IEC Publication 51-1 (1984). Direct Acting Indicating Analogue Electrical Measuring Instruments and Their Accessories, Part 1: Definitions and General Requirements Common to All Parts.
[6] IEC Publication 414 (1973) 1st ed. Safety Requirements for Indicating and Recording Electrical Measuring Instruments and Their Accessories.
[7] IEC Publication 688-1 (1980). Electrical Measuring Transducers for Converting AC Electrical Quantities Into DC Electrical Quantities, Part 1: General Purpose Transducers.
2. Object
This standard is intended to:
(1) Specify the terminology and definitions relating to transducers whose main application is in electrical power engineering.
(2) Unify the test specifications used in evaluating transducer performance.
(3) Specify accuracy classes and also the permissible errors introduced by the various influences for these classes.
3. Definitions
For the purposes of this standard, the following definitions apply in addition to those in
ANSI/IEEE Std 100-1987 [4].
In this standard, the term transducer is restricted to transducers which convert alternating electrical measured quantities into direct current or voltage.
3.1 General Terms
3.1.1 Electrical Measuring Transducer (Hereinafter Designated Transducer). A device for converting an ac electrical quantity into a direct current or voltage for measurement purposes.
3.1.2 AuxIliary Supply. An alternating current or direct current electrical supply other than that producing the measured quantity which is necessary for the correct operation of the transducer.
3.1.3 Auxiliary Circuit. A circuit which is usually energized by an auxiliary supply.IEEE 460 pdf download.